GreatDane

You are welcome. I learned of United Radio on this site. It was quick, simple and easy. They pre-quoted the price when I called and I had it back in a week. No sales talk. Just "What amp to you have? Here's your quote. Send it to us and we'll fix it and send it back to you for that price". They did exactly that.

Oh, and they are just regular Phillips screws.

I believe there are three screws holding the amp. One in the front one in the back and one in the back that is also holding a small black box. I may be wrong so if there's one more screw holding it losen that one too:-). You should not take the screws out of the brackets holding the amp but the screws holding the metal bracets to the car (i.e. leave the metal brackets on the amp). This part (taking the screws outgetting the amp out) is pretty straight forward. As said, take the amp out, after gently disconnecting all the wires on the back, and then reattach the small black box - otherwise your key is no longer recognized. Let me know if you still have a problem.

I took Jeff's advice and contacted United Radio. They fixed my ML amp for $700. Lexus wanted $2,800 for a new one (not including diagnosis and installation). It took a week and I live in CA and United is in NJ. Nice service and the amp works like new again! You will know that the amp is done if one of both of these situations are true: 1. You hear a click-click sound and/or high pitch sounds but no normal music/radio. It is otherwise dead. 2. Your 30A fuse on the passenger side is toast. The amp is placed in the trunk on the right side next to the spare wheel. Open the trunk floor lid, unhook the wires on the back and remove three screws. There's a small black box with a wire attached to it. Leave that in the car. Otherwise your key is not recognized as present. Good luck!